Édouard Stephan discovered NGC 3574 = St IX-24, along with NGC 3570 on 15 Mar 1877.
400/500mm - 17.5" (4/14/01): extremely faint, very small, round, 15" diameter, no details and requires averted vision. Located 2.9' NE of NGC 3570 and second brightest in a group.
Notes by Steve Gottlieb